Quiz 10

DNS servers maintain a database of information that contains zones.​
True
False
The use of WINS forward lookup is enabled by default.​
True
False
The MX record type is used to designate mail exchangers, or mail servers for e-mail.
True
False
What type of DNS record is used to contain an alias for another record, allowing for the use of different names for the same host?​
​A record
AAAA record
CNAME record
€‹Pointer record
€‹Select the PowerShell cmdlet that can be used to create a new Active Directory integrated primary zone:
€‹Install-DNSPrimaryZone
Add-DnsServerPrimaryZone
Add-ADPrimaryZone
€‹Install-IADPzone
When data within a zone changes, what information in the SOA record changes to reflect that the zone information should be replicated?​
€‹Serial number
Refresh interval
Retry interval
€‹Minimum TTL
Who is responsible for the management of the Internet root servers?
Internet Assigned Numbers Authority (IANA)
Institute of Electrical and Electronics Engineers (IEEE)
American Registry for Internet Numbers (ARIN)
International Standards Organization (ISO)
What type of DNS query causes a DNS server to respond with the best information it currently has in its local database?​
Recursive query
€‹Local query
​Extended query
€‹Iterative query
€‹A valid reverse lookup zone consists of the network ID's octets in reverse order, with what at the end of the name?
.arpa
In-addr.arpa
Rlz.arpa
€‹in-addr.ptr
What RFC defines the DNS resource record types?
RFC 1100
RFC 1183
RFC 1918
RFC 2311
What command option for the dnscmd command lists all zones on the server?
/enumrecords
/enumzones
/info
/ipvalidate
Which of the following options can an administrator enable to improve DNS security?
Do not allow dynamic updates
Do not allow Active Directory Integrated Zones
Allow zone transfers
Notify
The responsible person section of an SOA record contains what information?
The name or organization responsible for the zone
€‹The username responsible for the zone
The SWIP account details for the zone
€‹The e-mail address of the responsible person
A computer making a DNS query is known as a DNS client, or DNS ____resolver___.
__round robin__ load balancing using DNS works by creating two A records with the same hostname, but different IP addresses, which point any queries for the hostname to multiple hosts running the same service.
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